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authorThomas Gleixner <tglx@linutronix.de>2017-06-20 01:37:25 +0200
committerThomas Gleixner <tglx@linutronix.de>2017-06-22 18:21:16 +0200
commit0dd945ff4647a1f29c6ae8f4f9a69c8f37c994cf (patch)
tree84251b6b2c79f89ac5a2a5919254490596ccfe42 /kernel/irq/cpuhotplug.c
parent137221df69c6f8a7002f82dc3d95052d34f5667e (diff)
downloadlinux-stericsson-0dd945ff4647a1f29c6ae8f4f9a69c8f37c994cf.tar.gz
genirq/cpuhotplug: Remove irq disabling logic
This is called from stop_machine() with interrupts disabled. No point in disabling them some more. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Keith Busch <keith.busch@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Christoph Hellwig <hch@lst.de> Link: http://lkml.kernel.org/r/20170619235445.198042748@linutronix.de
Diffstat (limited to 'kernel/irq/cpuhotplug.c')
-rw-r--r--kernel/irq/cpuhotplug.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/kernel/irq/cpuhotplug.c b/kernel/irq/cpuhotplug.c
index 011f8c4c63da..705139831590 100644
--- a/kernel/irq/cpuhotplug.c
+++ b/kernel/irq/cpuhotplug.c
@@ -59,11 +59,8 @@ static bool migrate_one_irq(struct irq_desc *desc)
*/
void irq_migrate_all_off_this_cpu(void)
{
- unsigned int irq;
struct irq_desc *desc;
- unsigned long flags;
-
- local_irq_save(flags);
+ unsigned int irq;
for_each_active_irq(irq) {
bool affinity_broken;
@@ -73,10 +70,9 @@ void irq_migrate_all_off_this_cpu(void)
affinity_broken = migrate_one_irq(desc);
raw_spin_unlock(&desc->lock);
- if (affinity_broken)
- pr_warn_ratelimited("IRQ%u no longer affine to CPU%u\n",
+ if (affinity_broken) {
+ pr_warn_ratelimited("IRQ %u: no longer affine to CPU%u\n",
irq, smp_processor_id());
+ }
}
-
- local_irq_restore(flags);
}